Essentials LAB 30% pH- Down is an acid solution (30% phosphoric acid) which can be used in small, controlled doses to lower the pH (increase acidity) of nutrient solutions. Mix thoroughly and measure with a calibrated pH meter to attain the desired pH reading. Ideal for adjusting large volumes of nutrient solution.

Features:

• Concentrated acid solution 
• Can adjust the pH of large volumes of nutrient solution 

Technical Specifications:

• 30% phosphoric acid 
• This product falls below the concentration threshold for Regulated Substances under The Control of Poisons and Explosives Precursors Regulations 2023.   
• pH: <1.0 
• Volume: 1 L 

FAQs:  

Q: How should I use Essentials LAB 30% pH- to adjust the pH level of my nutrient solution? 

A: First, carefully check the pH of your nutrient solution. If the pH reading is too high, then the solution is not sufficiently acidic. Add a small, measured amount of Essentials LAB 30% pH- to your nutrient reservoir and mix thoroughly. Check the pH level again and note how much it has changed. You now know how much a certain dosage of Essentials LAB 30% pH- has lowered the pH in your reservoir, and from this you can judge how much more, if any, you need to add to achieve the desired pH level. 

Q: The pH level of my solution is already low. What should I do? 

A: If the pH is within the recommended range, you should do nothing. But if the pH is too low, then you should use Essentials LAB pH+ to adjust it to a higher level, within the recommended range.